You can stumble onto the coolest things in New York City. Like the Dr. Seuss art sale at Pop Gallery. None of it is original artwork, but there are a lot of very cool prints. Some prints are from his personal artwork, some are blown up book illustrations. Some have roughs paired with final art. And then there's the Seuss taxidermy animals, faithfully reproduced from the originals. There's also a six foot tall, bronze Lorax (only $34K!).
